Sarisa is a monotypic moth genus in the family Geometridae and was first described by David Stephen Fletcher in 1979.

[2] The genus contains only one species, Sarisa muriferata, the hook-tip fern looper, which is endemic to New Zealand and surrounding islands.

[7] They hide during the day in leaf litter and are active at night feeding on host plants.

The moth will drop to the ground when disturbed or attacked, with wings held motionless.

[7] There are probably two generations per year in the North and South Islands, with adults recorded from September to March.